TIFF

TIFF (tagged image file format) is perhaps the most widely supported image file format. It’s happy being imported into Illustrator, InDesign, QuarkXPress, Microsoft Word, and some text editors—almost any application that accepts images. The TIFF image format supports multiple layers as well as RGB and CMYK color spaces, and even allows an image to contain spot-color channels (although some applications, such as Word, do not support such nontraditional contents in a TIFF).